I hope you’re doing okay and I’m sorry for your loss. I don’t exactly have any fluff on the top of my mind, but I do have some wholesome stories with cats such as, “A man and his cat” and “Leviathan” is a completed apocalyptic story.
"once more" or "a world ruled by cats "
My condolences for your loss.
I don't have a fluff but a couple of action ones!
This one has a guy who transforms into a fat cat (frigging funny it's one of my favs since 2018)
https://www.mangago.zone/read-manga/eleceed/
This is a cat in a zombie apocalypse
The Walking Cat - A Cats-Eye View of the Zombie Apocalypse
https://www.mangago.zone/read-manga/the_walking_cat_a_cats_eye_view_of_the_zombie_apocalypse/
This is my sister's fav with cats, so I'm adding that as well
https://www.mangago.zone/read-manga/itou_junji_no_neko_nikki_yon_amp_mu/
Here's another fun one
https://www.mangago.zone/read-manga/all_that_we_hope_to_be/
And last..
This one doesn't have cats but I like the vibes and illustration so Im adding it here
https://www.mangago.zone/read-manga/bibliomania/
my cat died today, I think I need some fluff, recommend me some fluff to read pls, even better if there's a cat on the story, such as neko to kiss, if u don't have any fluff, pls recommend me a story where everyone or half of the population dies, just like aot